Energy absorption mechanism of filament wound composite sandwich cylinder under quasi-static compression loading
-
摘要: 提出并设计了一种新型纤维缠绕复合材料夹芯圆柱体吸能结构单元。为探讨其在准静态压缩载荷作用下初始损伤的产生、扩展及演变规律,基于ABAQUS建立该单元数值分析模型,并开展了准静态压缩试验。数值模拟与试验现象综合分析表明,准静态压缩载荷作用下单元结构的响应具有三阶段特征,包括初始线弹性压缩阶段、渐进损伤阶段和结构破坏阶段。固体浮力芯材在压缩载荷作用下产生塑性损伤变形和剪切断裂破坏,纤维缠绕复合材料表层在芯材横向膨胀效应引起的环向应力作用下发生环向纤维的拉伸断裂破坏,导致单元结构稳态吸能过程的终止。研究结果表明,该单元比吸能效率远高于传统的复合材料圆柱壳结构。Abstract: The new energy absorption structure element of filament wound composite sandwich cylinder has been put forward and designed. In order to investigate the damage formation, extension and evolvement law of the element, the numerical analysis model was built by ABAQUS and the experiments were conducted under quasi-static compression loading. Comprehensive analysis of numerical simulation and experimental results show that the quasi-static compression process can be divived into three stages, including the initial elastic compression stage, the progressive damage stage and the structural damage stage. The plastic damage deformation and shear failure of solid buoyant core occur under compression load. Then steady energy absorption process is terminated by the tensile breaking of hoop fibers owing to transverse expansion effect of solid buoyant core. The results show that the energy absorption efficiency of this element is much higher than that of the traditional composite culindrical shell structure.
-
Keywords:
- filament wound /
- composite /
- sandwich cylinder /
- numerical model /
- energy absorption efficiency
-
-
期刊类型引用(8)
1. 刘伟,杨继,袁春辉,夏旭,张锦光. 不同温度下碳纤维复合材料-钢胶接界面黏结性能研究. 复合材料科学与工程. 2025(03): 39-45+70 . 百度学术
2. 邵家儒,刘牛,杨瑜,郑子君. CFRP复合材料构件胶接特性及失效规律研究. 应用力学学报. 2023(05): 1058-1067 . 百度学术
3. 陈旭,曹亚周,崔健,葛继文. 碳纤维复合材料车体地板长大型材粘接工艺研究及装备设计. 机械. 2022(11): 63-69 . 百度学术
4. 陈卓异,彭彦泽,李传习,郭靖. 高温下双搭接钢-CFRP板胶粘界面力学性能试验. 复合材料学报. 2021(02): 449-460 . 本站查看
5. 李传习,李游,贺君,刘一鸣,彭彦泽. 固化剂对室温胶黏CFRP板/钢板界面性能的影响. 建筑材料学报. 2021(02): 339-347 . 百度学术
6. 杨峰,陈玉龙,罗旺,史剑,贾林江,陈子光. TG800碳纤维/聚酰亚胺树脂复合材料带翻边开口圆柱壳机匣件高温气动载荷下的承载性能. 复合材料学报. 2021(07): 2184-2195 . 本站查看
7. 桑海涛,周昕. 暖通空调胶接结构搭接接头承载力优化研究. 中国胶粘剂. 2021(11): 51-54+72 . 百度学术
8. 李传习,李游,高有为,胡正,刘一鸣. 纳米SiO_2质量分数对胶粘碳纤维增强树脂复合材料板-钢搭接界面黏结性能的影响. 复合材料学报. 2020(10): 2619-2635 . 本站查看
其他类型引用(7)
-
计量
- 文章访问数: 1047
- HTML全文浏览量: 52
- PDF下载量: 710
- 被引次数: 15